package com.ashapo.pattern.pattern001factory;

//第3步-创建工厂根据给定的信息生成具体类的对象。

public class ShapeFactory {

    public Shape getShape(String shapeType){
        if(shapeType == null){
            return null;
        }
        if(shapeType.equalsIgnoreCase("CIRCLE")){
            return new Circle();

        } else if(shapeType.equalsIgnoreCase("RECTANGLE")){
            return new Rectangle();

        } else if(shapeType.equalsIgnoreCase("SQUARE")){
            return new Square();
        }

        return null;
    }
}
